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Kannan D.,University of Madras | Bakthadoss M.,University of Madras | Madhanraj R.,Ranipettai Engineering College | Murugavel S.,Vellore Institute of Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title compound, C25H22N2O 3S, the sulfonyl-bound benzene ring forms dihedral angles of 36.8 (2) and 81.4 (2)°, respectively, with the formyl-benzene and methyl-benzene rings. The mol-ecular conformation is stabilized by an intra-molecular C-H⋯O hydrogen bond, which generates an S(5) ring motif. The crystal packing is stabilized by C-H⋯O hydrogen bonds, which generate C(11) chains along the b axis. The crystal packing is further stabilized by π-π inter-actions [centroid-centroid distance = 3.927 (2) Å].


Madhanraj R.,Ranipettai Engineering College | Murugavel S.,Vellore Institute of Technology | Kannan D.,University of Madras | Bakthadoss M.,University of Madras
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title compound, C 29H 25NO 5S, the sulfonyl-bound benzene ring forms dihedral angles of 42.1 (1) and 48.5 (1)°, respectively, with the formyl-substituted benzene ring and the naphthalene residue. In the crystal, pairs of C - H⋯O interactions lead to the formation of R 2 2(10) inversion dimers, which are linked by further C - H⋯O interactions into supra-molecular tapes running along [100]. The crystal packing is further stabilized by C - H⋯π inter-actions.


Madhanraj R.,Ranipettai Engineering College | Murugavel S.,Vellore Institute of Technology | Kannan D.,University of Madras | Bakthadoss M.,University of Madras
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title compound, C 24H 19ClN 2O 3S, the sulfonyl-bound benzene ring forms dihedral angles of 38.1(2) and 81.2(1)°, respectively, with the formyl benzene and benzene rings. The molecular conformation is stabilized by a weak intramolecular C-H···O hydrogen bond, which generates an S(5) ring motif. The crystal packing is stabilized by C-H···O hydrogen bonds, which generate C(7) zigzag chains along [010] and R 3 3(19) ring motifs along [010]. The crystal packing is further stabilized by C-Cl···π interactions [Cl·· ·centroid = 3.456(2) Å and C-Cl···centroid = 173.4(2)°].


Madhanraj R.,Ranipettai Engineering College | Murugavel S.,Vellore Institute of Technology | Kannan D.,University of Madras | Bakthadoss M.,University of Madras
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title compound, C 25H 25NO 5S, the O atom of the hydroxy group is disordered over two positions, with occupancies of 0.820 (2) and 0.180 (2). The sulfonylbound benzene ring forms dihedral angles of 31.8 (1) and 60.7 (1)°, respectively, with the hydroxymethylbenzene and phenyl rings. The molecular conformation is stabilized by an intramolecular O - H⋯O hydrogen bond, generating an S(8) ring motif. The crystal packing is stabilized by intermolecular C - H⋯O hydrogen bonds and C - H⋯π interactions.


Madhanraj R.,Ranipettai Engineering College | Murugavel S.,Vellore Institute of Technology | Kannan D.,University of Madras | Bakthadoss M.,University of Madras
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

In the title compound, C25H23NO5S, the sulfonyl-bound benzene ring forms dihedral angles of 37.2 (1) and 67.0 (1)°, respectively, with the formyl-phenyl and phenyl rings. The molecular conformation is stabilized by an intramolecular C-H⋯π inter-action. In the crystal, molecules are linked by C-H⋯O hydrogen bonds, forming a two-dimensional network in the (110) plane in which R44(38) ring motifs are generated.

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